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D-PWF-OE-00 · Question #78

What are the prerequisites for creating a Fault Set? (Choose two)

The correct answer is A. At least 3 nodes in the cluster B. Predefined Protection Domain. Creating a Fault Set requires at least 3 nodes (A) because the system needs enough nodes outside the fault set to maintain data redundancy if an entire fault set fails - fewer nodes cannot guarantee rebuild capacity. A predefined Protection Domain (B) is also mandatory because…

PowerFlex Concepts and Components

Question

What are the prerequisites for creating a Fault Set? (Choose two)

Options

  • AAt least 3 nodes in the cluster
  • BPredefined Protection Domain
  • CExisting Storage Pool
  • DEnabled deduplication

How the community answered

(50 responses)
  • A
    90% (45)
  • C
    4% (2)
  • D
    6% (3)

Explanation

Creating a Fault Set requires at least 3 nodes (A) because the system needs enough nodes outside the fault set to maintain data redundancy if an entire fault set fails - fewer nodes cannot guarantee rebuild capacity. A predefined Protection Domain (B) is also mandatory because Fault Sets are logical groupings defined within a Protection Domain, so that container must exist first.

C (Existing Storage Pool) is incorrect because Storage Pools are created after the Protection Domain and are not a dependency for defining a Fault Set. D (Enabled deduplication) is a data efficiency feature entirely unrelated to fault tolerance configuration.

Memory tip: Think "3 nodes, 1 domain" - you need a minimum cluster size to survive a fault set failure, and you need the Protection Domain as the parent container before you can place nodes into fault groups within it.

Topics

#fault set#prerequisites#protection domain#node requirements

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